Re: Upgrade

[Martin Husemann <martin%duskware.de@localhost>]

On Mon, Jul 22, 2024 at 08:30:53PM +0200, pms-dev%outlook.com@localhost wrote:
> xuser wrote:
> > Is there a way to upgrade NetBSD 6.1.4 to NetBSD 10.0 without breaking
> > custom installed software?
> > 
> > Thanks,
> > Ben

There is no reason custom installed software should break when doing an
upgrade for typical userland software. E.g. I found an old licensing
software on one of my machines that had been carried over from several
older versions of the hardware and still worked after an update to
10.0. The hardware had been upgraded from i386 to amd64 in the mean
time, but the licensing tool still worked (NetBSD cares a lot about binary
compatibility).

> I highly doubt it unless you are using static binaries :)
> Everything should work but LD dependencies(ldd(1) tool) are ALWAYS
> problematic after upgrades.

Only if you manually deinstall shared libraries. The typical case is that
the old libs are just left in place and new stuff uses new libs, while
old programs continue to use the old libs.

Martin